Yes it’s worth it when camping where there’s no sewer at the site. I still have the old (Blue Boy). Rhino makes some good stuff so I’d say their tote is built well. Should be able to strap to the ladder. You can always make or have made a support off the bumper. Also look up Mount-n-lock bumper support. https://mount-n-lock.com/safetystrut...bumper-failure
I purchased them for my rear bumper. Like night and day. The supports are supposed to allow you to haul 400-500 Lbs; but I wouldn’t try that. I made a support that my kayak sits in and then I strap it to the ladder. You need to make sure you don’t obstruct your tail light. I added a light to my kayak support and hooked into my left tail light. Also I haul my beach cart on the rear also. Probably total of 100-150 Lbs Total on the bumper with the supports. Also use the lock reciever from mount-n-lock.